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83131265693 = 713687867677
BaseRepresentation
bin100110101101100000…
…0100111001010011101
321221120120010212000102
41031123000213022131
52330223101000233
6102105011310445
76002033046050
oct1153300471235
9257516125012
1083131265693
113228a483373
12141405ab425
137abaa88c58
144048990a97
1522683411e8
hex135b02729d

83131265693 has 8 divisors (see below), whose sum is σ = 95014211712. Its totient is φ = 71250082416.

The previous prime is 83131265663. The next prime is 83131265699. The reversal of 83131265693 is 39656213138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83131265693 - 234 = 65951396509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83131265699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338030 + ... + 529647.

It is an arithmetic number, because the mean of its divisors is an integer number (11876776464).

Almost surely, 283131265693 is an apocalyptic number.

It is an amenable number.

83131265693 is a deficient number, since it is larger than the sum of its proper divisors (11882946019).

83131265693 is a wasteful number, since it uses less digits than its factorization.

83131265693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881371.

The product of its digits is 699840, while the sum is 47.

The spelling of 83131265693 in words is "eighty-three billion, one hundred thirty-one million, two hundred sixty-five thousand, six hundred ninety-three".

Divisors: 1 7 13687 95809 867677 6073739 11875895099 83131265693